Pipe-coupling.



M. A. CONNOR,

PIPE GOUPLING.

APPLICATION FILED JULY 9, 1906.

98 1 9 1 4. Patented Aug. 24, 1909.

UNITED STATES an'r anion.

MILES A. CONNOR, OF LOCKPORT, NEW YORK.

PIPE-COUPLING.

To all whom "it may concern:

Be it known that l. Minus A. CONNOR a citizen of the United Statesresiding at Lockport, in the count-y of Niagara and State of New York,have invented a new and useful Improvement in Pipe-Couplings, of whichthe following is a specification.

This invention relates to a pipe coupling and has the object to providean improved coupling of this character whereby pipes arranged at varyingangles relatively to each other may be readily and reliably con nected.

In the accompanying drawings: Figure 1 is a longitudinal section showingmy improved coupling as constructed for general use and one form ofmeans for connecting the body sections. Figs. 2, 3 and 4 are transversesections thereof in the correspondingly numbered lines in Fig. 1. Fig. 5is a fragmentary section similar to Fig. 1 showing the clamping boltsreversed.

Similar letters of reference indicate corresponding parts throughout theseveral views.

The two pipe sections or nipples constituting the body of my improvedpipe coupling consist each of a rear straight tubular shank A and afront curved tubular neck B. At its front end each body section isprovided with an external annular flange C, the face of this end of thesection and its flange being arranged at an oblique angle of preferably45 degrees to the axis of the shank. The faces of the two body sectionsare adapt ed to bear against each other and the same are also capable ofrotation relatively to each other in the plane of their faces so as topermit of adapting the body sections to the angle of the two pipes whichare to be connected by the same. As shown in full lines in Fig. 1 thetubular shanks of the two body sections are axially in line in whichposition of the same they are adapted to couple two'pipes which are in acorresponding position. Upon turning one body section of the coupling sothat its shank is at right angles to the shank of the other section, asshown by dotted lines in Fig. 1, the parts are in position forconnecting two pipes which are arranged at thisangle relatively to eachother. In like manner the body sections may be turned at differentoblique angles relatively to each other so that their shanks may beconnected with pipes arranged at such relative angles.

Specification of Letters Patent.

Application filed July 9, 1906.

Patented Aug. 2%, recs.

Serial No. 325,256.

As shown in Fig. 1, one of the body sections is preferably provided onits face with an annular centering rim D which engages with acorrespondingly shaped rabbet (l in the face of the other body sectionfor keeping these parts in alineinent while adjusting the same about theaxis of the rot: ry joint between the same.

Various means may be employed for ad- 3 pistably connecting the bodysections. one of the means for this purpose shown in Figs. 1a of thedrawings being constructed. as follows: In the flange of one of the bodysections is formed an annular undercut groove which is concentric withthe axis about which the sections are rotated for adjustment andconsists of a wide or enlarged inner portion E arranged wholly withinthe rim and a reduced or narrow outer portion 6 which opens out throughthe front side or face of the flange. F represents a plurality ofcoupling or clamping bolts each of which is arranged with its body inthe narrow por tion of the' undercut groove and in an opening f formedin the flange of the other body section parallel to the adjusting axisand having its head arranged in the enlarged part of the undercut groovewhile its nut bears against the rear side of the flange having the boltopening f, as shown in Fig. 1. Upon loosening the nuts of these bolt-sthe two body sections may be rotated about theirv adjusting axis forbringing their shanks into the required angular position after whichthese parts are held in this position by tightening the nuts of theclamping bolts.

If desired the nuts of the bolts may be arranged in the enlarged portionof the an dercut groove and their heads may bear against the rear sideof the flange having the bolt openings, as shown in Fig. 5.

The enlarged part of the undercut groove is preferably of such widththat one or both of its sides engage with one or both sides of the heador nut of the bolt arranged therein and thus prevent the same fromturning while tightening the nut on the bolt or while screwing the boltinto the nut. Although four coupling or clamping bolts are shown in thedrawings for connecting the flanges of the body sections it is obviousthat a greater or less number may be employed.

9 represents an opening leading from the enlarged part of the undercutgroove through the rear side of the flange in which this groove isformed. This opening is 'made sufficiently large to permit the bolt headto be passed from the rear side of the grooved flange through the inletopening and into the undercut groove, as shown in Fig. 1, or the nut ofthe bolt may be thus passed through this inlet opening into the undercutgroove, as shown in Fig. 5.

My improved pipe coupling is simple and durable in construction andcapable of being readily adjusted into the various positions required toflt the pipes to be coupled Without necessitating bending or shifting ofthe same as has been necessary when using the couplings as heretoforeconstructed. Furthermore by curving the neck of each body sectionbetween the shank and its flanged end the diameter of this part of theconduit may be made of the same size as the remaining parts of theconduit, as shown, thus avoiding any contraction in the conduit andpermitting a free flow through all parts of the same.

I claim as my invention: A pipe coupling comprising two body sectionseach of which has an oblique face at its front end and an annular flangearound said face arranged at the same angle, one of said sections havingits flange provided with one or more bolt openings parallel to itsadjusting axis and the other section having an annular undercut groovewhich opens with its contracted or narrow portion through the front sideof the respective flange and a bolt inlet opening extending from saidgroove through the back of the flange, and one or more bolts eacharranged with its body in one of the bolt openings and the contractedpart of said groove while its head and nut are arranged one in theenlarged part of said groove and the other engaging with the rear sideof the flange containing the bolt openings, substantially as set forth.

Witness my hand this th day of June, 1906.

MILES A. CONNOR.

Witnesses:

SETH M. HALL, Tnno. L. Porr.

